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Which of the following is a characteristic of an acid?

  • (A) Bitter taste
  • (B) Slippery feel
  • (C) Sour taste
  • (D) Soapy feel

Answer: Sour taste

Acids typically have a sour taste, as seen in substances like lemon juice or vinegar.

What is the process by which water moves through plants?

  • (A) Photosynthesis
  • (B) Transpiration
  • (C) Respiration
  • (D) Fermentation

Answer: Transpiration

Transpiration is the process through which water moves from the roots to the leaves and is released as water vapor into the atmosphere.

What is the primary function of the human respiratory system?

  • (A) Produce hormones
  • (B) Transport oxygen
  • (C) Regulate temperature
  • (D) Break down food

Answer: Transport oxygen

The primary function of the respiratory system is to supply oxygen to the body and remove carbon dioxide through the lungs.

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What type of organism is capable of photosynthesis?

  • (A) Fungi
  • (B) Plants
  • (C) Animals
  • (D) Bacteria

Answer: Plants

Plants are the primary organisms capable of photosynthesis, using sunlight to produce food.

What type of cell division results in the production of gametes?

  • (A) Mitosis
  • (B) Meiosis
  • (C) Binary fission
  • (D) Budding

Answer: Meiosis

Meiosis is the type of cell division that produces gametes (sperm and eggs), reducing the chromosome number by half.

What is the process by which plants produce their food?

  • (A) Respiration
  • (B) Photosynthesis
  • (C) Digestion
  • (D) Fermentation

Answer: Photosynthesis

Photosynthesis is the process by which plants convert light energy into chemical energy, producing glucose and oxygen.

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What is the study of the Earth?s physical structure and substances?

  • (A) Geology
  • (B) Chemistry
  • (C) Physics
  • (D) Astronomy

Answer: Geology

Geology is the scientific study of the Earth?s structure, substances, history and processes.

Which is the longest bone in the human body?

  • (A) Femur
  • (B) Tibia
  • (C) Radius
  • (D) Humerus

Answer: Femur

The femur is the longest bone in the human body, located in the thigh.

What is the basic building block of proteins?

  • (A) Fatty acids
  • (B) Amino acids
  • (C) Nucleotides
  • (D) Sugars

Answer: Amino acids

Amino acids are the basic building blocks of proteins, which combine to form peptides and proteins.

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Which of the following is a basic unit of length in the metric system?

  • (A) Meter
  • (B) Foot
  • (C) Yard
  • (D) Inch

Answer: Meter

The meter is the basic unit of length in the metric system, used to measure distance or length.

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